3.8.2 Greatest hits from previous weeks

Greatest hits from previous weeks:

3.8.2.1 What are all the font styles I can use in math mode?

http://tex.stackexchange.com/questions/58098/what-are-all-the-font-styles-i-can-use-in-math-mode

As can be seen in above picture, there are lots of fonts or font styles that can be used in math mode. 
What are all the fonts or font styles I can use in math mode, and which packages are required  ...
 

- asked by doncherry (236 votes), answered by Christian (305 votes)

3.8.2.2 How do I use a particular font for a small section of text in my document?

http://tex.stackexchange.com/questions/25249/how-do-i-use-a-particular-font-for-a-small-section-of-text-in-my-document

The standard font packages make global changes to the fonts in my document. What if I want to use a particular font for just a portion of my text? 
How do I find the right name of the font? 
How do I  ...
 

- asked by Alan Munn (331 votes), answered by frabjous (263 votes)